Product Overview
Technical Summary
| Product type | DI 8×24 VDC SRC BA |
|---|---|
| Digital inputs | 8, parameterizable |
| Rated input voltage | 24 V DC |
| Input characteristic | Sourcing; IEC 61131, type 1 |
| Input delay | 0.05 / 0.1 / 0.4 / 0.8 / 1.6 / 3.2 / 12.8 / 20 ms, plus 30 to 500 μs depending on line length |
| BaseUnit | BU type A0 |
| PROFINET operation | Suitable for operation on PROFINET R1 IMs |
| Firmware version | V0.0 |
| Supply voltage | 24 V DC; permissible range 19.2 V to 28.8 V |
| Protection | Reverse polarity protection: Yes |
Key Features
8 parameterizable digital inputs with sourcing input characteristics.
Rated input voltage: 24 V DC; signal "0": 30 V to -5 V and signal "1": -11 V to -30 V, with L+ as the reference potential.
Parameterizable delay: 0.05 / 0.1 / 0.4 / 0.8 / 1.6 / 3.2 / 12.8 / 20 ms, plus a 30 to 500 μs delay depending on line length.
Module diagnostics include supply-voltage monitoring, a diagnostic alarm, readable diagnostic information, and a green/red DIAG LED.
Fits BU type A0 and supports operation on PROFINET R1 IMs; STEP 7 TIA Portal configuration is available from V14.
Frequently Asked Questions
What is the exact Siemens line item?
It is Siemens 6ES7131-6BF61-0AA0, product type DI 8×24 VDC SRC BA.
How many digital inputs does the module have?
It has 8 parameterizable sourcing digital inputs.
Which BaseUnit is supported?
It fits BU type A0. For 3-wire connection, the source specifies BU type A0 with AUX terminals or a potential distributor module; for 4-wire connection, it specifies BU type A0 plus a potential distributor module.
What input delay settings are available?
The parameterizable settings are 0.05 / 0.1 / 0.4 / 0.8 / 1.6 / 3.2 / 12.8 / 20 ms, in each case plus a 30 to 500 μs delay depending on line length.
